Valve.



D. T. WILLIAMS.

VALVE. APPLICATION FILED MAR.19, 190s.

Patented Apr. 13, 1909.

fiavi d I: m'lll'ams mrnn sra rns earner Dav n r. WILLIAMS, or IATERSON, NEW JERSEY, nssrenon TO COMPANY, A CORPORATION or NEW YORK.

VACUUM ENGINEERING VALVE Specification of Letters Patent.

Patented April 13, 1909.

T 0 all whom it may concern:

Be it known that I, DAVID T. WiLLrAMs, a British subject, and a resident of Paterson, county of Passaic, State of New Jersey, have invented certain new and useful Improvements in Valves, of which the following is a full, clear, and complete disclosure.

My invention relates to that class of valves in which the flow through a plurality of passages or conduits is controlled simultaneously and with the movement of a single valve member.

My invention relates especially to valves having two passages therein, either of which may be opened or closed independently of the other, or both of which may be simulta neously opened or closed. Such valves are of special utility in connection with pneumatic cleaning systems where water is supplied to the cleaning implement through one passage and the vacuum or suction supplied to the cleaning implement through another passage, or where the water and vacuum ar supplied to the cleaning implement alternately, through one passage. However, I do not wish to be understood as being limited to this particular use, as the valve herein described may be used in connection with pipes conducting other fluids and for other purposes.

The object of my invention is to produce a valve which will have not only the capabilities and functions above pointed out, but which will, at the same time, have its passages so arranged that the movable valve member may have considerable circular movement without affecting the continuity of the passages when in any particular position, and without permitting leaks from one passage to another owing to the small extent of contacting surfaces between adjacent passages. In my improved valve the contacting surfaces between the different passages are always of suflicient area and extent to prevent the leakage from one passage to another, while at the same time, if the valve is turned into only approximately the position to produce a desired efiect, the valve will be completely operative in such approXi-' mate pos1t1on.

For a full and detailed description of one form of my invention which I at present deem preferable, reference may be had to the followlng specification and to the accompanying drawing forming a part thereof, in wh1ch F1gure 1 1s a vertical sectional new of my improved valve, showlng the movable mem ber thereof 111 elevation' F 123. 2 1s a horizontal sectional view thereof taken substantiallyon the line AB Fig. 1; and Figs. 3 to 6 in clusive are horizontal sectional views taken. substantially upon the line C-D Fig. l, and showing the movable portion or stem of the valve in different positions to produce the different arrangements in the continuity of the passages.

ihe valve casin 1 is provided with two passages 2 and 3, in this instance the passage 2 being to conduct the suction, while the passage 3 is to conduct the liquid.

The passage 3 is branched on the admission side of the valve casing, as indicated at i and 5, and the branches enter the valve stem socket at diametrically opposite points. The valve stem 6 is provided with a hole ,7, which is adapted to form a continuation of the passage 2, and is also provided with a second hole in the form of a passage having two arms at right angles to each other, as indicated at 8. The valve stem may he retained within the valve casing in any suitable well-known way, such as by the nut 9, and may be rotated by means of the head 10 adapted to receive a wrench, or by any well known form of handle.

Four different positions of the valve plug or stem are shown in Figs. 3 to 6 inclusive. In Fig. 3 the stem is so arranged that both of the passages 2 and 3 are closed, thereby cutting oif the supply through bothof said passages. In Fig. a the valve stem has been rotated 90 degrees, and this allows the hole '7 to come into line with the passage 2, which permits the flow through said larger passage, the smaller passage 3 being closed.

In Fig. 5 the valve stem has been rotated. 90 degrees from the previous position shown in Fig. l, and this movement causes the larger passage 2 to become closed, while the angular hole 3 in the stem forms a connection between the passage 3 and the branch 4 of said passage.

In Fig. 6 the valve stem is shown as rotated 90 degrees from the position shown in Fig. 5, and in this position both of the passages 2 and 3 are open for the flow of air and liquid, the angular hole 8 forming the connection in this case between the passage 3 and theilower branch 5 of said passage. It will, therefore, be seen that I have provided a valve in which two passages through the same may be opened and closed independently of each other, While at the same time both may be opened or closed together, and this result is produced Without crowding the parts, or complicating the valve to such an extent as Would make it dilficult to manufacture.

Having thus described this form of my invention, I do not Wish to be limited to the exact details of form and arrangement of parts set forth, for various changes may be -made Without departing from the spirit and scope of my invention; but

What I claim and desire to protect by Letters Patent of the United States is:

1. In combination With a rotary cut-oli Valve, an auxiliary valve comprising ports located in the valve casing at diametrically opposite points and connected ,With a common conc uit, a port intermediate the first named ports, the rotary valve stem having a transversepassage adapted to connect either of the said first named ports With the inter mediate port.

2. A valve comprising a casing having tWo sets of passages therein, one set terminating at diametrically opposite points, the second set having tWo passages terminating at diametrically opposite points but angularly situated relative to the first set, and a third passage intermediate the passages of the second set, a valve stem having a passage adapted to connect the passages of the first set and a second passage adapted to connect said intermediate passage With either of the other passages of said second set.

3. A valve, comprising a valve casing having branched passages therein, and a valve stem having a transverse passage therethrough adapted to connect anintermediate passage through said casing, With said branched passages in tWo positions of said stem.

4. A valve comprising a valve casing having a branched passage therein terminating at diametrically opposite points-in said casr ing, and a valve stem having a passage therein, tWo portlons of which extend at right angles to each other, said casing having a second passage adapted to be connected With either of the branches of said branched passage Whose ends are located QO'degrees apart, and another passage situated diametrically thereof.

Signed this 16th day of March, 1908.

DAVID T. WILLIAMS. Vfitnesses JAMEs J. Coscn'ovn, EDW. W. VAILL, Jr. 

